Prog cover suggestions

So for my music coursework I have to do a presentation on a genre of my choise from 1950-the present day. I chose to do prog but I need some suggestions of a song to play on guitar. I thought maybe YYZ or Tom sawyer by Rush but I also considered some Pink Floyd or Mars Volta. One things for sure, I am NOT playing 2112! Does anyone have any other suggestions?

EDIT: I Cum Blood is not prog!

Originally Posted by Demon Wolfone dream of mine is to play baroque and roll.

i dont quite know what it is, but i assume it involves plenty of harpsichord solos and medieval chanting.